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05-13-2016 03:29 AM
Dear support team,
I have got SMTP response smtp;550 5.7.1 Service unavailable; client [220.127.116.11] blocked using rbl.hp.com
Could you please kindly let me know how can I resolve this issue?
Thanks for your support
05-19-2016 08:05 AM
Here's the explaination for the error:
You may try this :
(not recommended by hp, though)
I am an HP Employee